WO2004036072A1 - Linearführungseinheit - Google Patents
Linearführungseinheit Download PDFInfo
- Publication number
- WO2004036072A1 WO2004036072A1 PCT/EP2003/011422 EP0311422W WO2004036072A1 WO 2004036072 A1 WO2004036072 A1 WO 2004036072A1 EP 0311422 W EP0311422 W EP 0311422W WO 2004036072 A1 WO2004036072 A1 WO 2004036072A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- support
- saddle
- linear guide
- channel
- guide according
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
- F16C29/04—Ball or roller bearings
- F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
- F16C29/0633—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides
- F16C29/0652—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the return paths are at least partly defined by separate parts, e.g. covers attached to the legs of the main body of the U-shaped carriage
- F16C29/0654—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the return paths are at least partly defined by separate parts, e.g. covers attached to the legs of the main body of the U-shaped carriage with balls
- F16C29/0659—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the return paths are at least partly defined by separate parts, e.g. covers attached to the legs of the main body of the U-shaped carriage with balls with four rows of balls
- F16C29/0661—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the return paths are at least partly defined by separate parts, e.g. covers attached to the legs of the main body of the U-shaped carriage with balls with four rows of balls with load directions in O-arrangement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
- F16C29/04—Ball or roller bearings
- F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
- F16C29/001—Bearings for parts moving only linearly adjustable for alignment or positioning
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
- F16C29/04—Ball or roller bearings
- F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
- F16C29/0602—Details of the bearing body or carriage or parts thereof, e.g. methods for manufacturing or assembly
- F16C29/0604—Details of the bearing body or carriage or parts thereof, e.g. methods for manufacturing or assembly of the load bearing section
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
- F16C33/60—Raceways; Race rings divided or split, e.g. comprising two juxtaposed rings
Definitions
- the following invention relates to linear guide units that are used, for example, in machine tool construction.
- a linear guide unit according to the features of the preamble of claim 1 has become known.
- An arranged between the support body and the guide rail running plate or support rail has a substantially triangular cross-section.
- the carriage is provided with an approximately triangular groove in cross section, in which the running plate is arranged.
- Contacting surfaces of the running plate and the carriage are formed in such a way that the running plate is supported rocking about an axis parallel to the direction of the rail.
- This running plate is also provided with two ball grooves forming raceways, which each delimit a support channel for the rolling elements.
- the ability to swing enables compensatory movements and thus a moment compensation of the carriage against the guide rail.
- the running plate will release material from the carriage under the rocking movement. While the running plates are often made of hardened material, the carriages remain unhardened, i.e. clearly rather.
- the object of the invention is to provide a linear guide unit according to the features of the preamble of claim 1, in which this disadvantage is eliminated.
- the support rail comprises a support part and a saddle part, the support part being accommodated on the support body, and the saddle part being provided with the raceway and further being supported on the support part such that it can be tilted.
- the support rail itself is tiltable due to the two-part design.
- the support part can be hardened as a small part without any problems and inserted into the supporting body.
- the connection between the support part and the support body can be such that no relative movements between the support part and the support body are possible. Unwanted wear, that is, rubbing of material out of the support body is thus excluded.
- the materials of the support part and the saddle part can easily be matched to one another in such a way that undesired abrasion is minimized.
- the support part is formed, for example, as a particularly simple form as a wire with a round cross-section, it is sufficient if the support body is provided with an approximately semicircular groove or else with a groove with a Gothic cross-sectional profile in which the wire is received. If the saddle part now carries out compensatory movements and thus carries out tilting movements on the wire, it should be ensured that a relative movement between the wire and the saddle part is possible, but not between the wire and the supporting body. This can be ensured in a favorable manner in that a first coefficient of friction is provided between the support body and the support part, and in that a second coefficient of friction is provided between the support part and the saddle part, the first coefficient of friction being greater than that second coefficient of friction is set.
- the friction coefficients can be set by means of suitable materials, surface treatments and pressure force between the supporting body and the support part.
- the support part is preferably inserted in a groove of the supporting body and provided with a curved support surface which cooperates with the saddle surface.
- the curvature is such that the saddle surface glides along this curved support surface.
- the support part or the saddle part or both parts can be formed from a steel hardened in the heat treatment process.
- the supporting body can remain soft, so that the linear guide unit according to the opening can be produced inexpensively.
- the support body is manufactured in a continuous casting process and is ground.
- Surface grinding is an extremely inexpensive way to break edges and even to further increase the hardness of the surfaces.
- the support body can be manufactured with a high lowering speed of the tool, which further increases the economic producibility.
- grooves and undercuts can be taken into account in a particularly simple manner in the continuous casting process. Undercuts can be useful, for example, when a support part, for example a wire, is pressed into an undercut groove. After inserting this wire, the groove wall of the support body then encloses more than half of the circumference of the wire, so that it is held properly and captively on the support body.
- a groove to be provided in the supporting body for receiving the support part has a Gothic profile, seen in cross section.
- the saddle surface of the saddle part is preferably also provided with a Gothic profile, so that the contact of the wire with the saddle part is also clearly defined.
- the support body with a groove open towards the guide rail, the groove cross section being circular or Gothic and encompassing more than half of the circumference.
- the saddle part preferably has two mutually parallel raceways, each of a rolling element channel.
- This arrangement is particularly suitable for linear guide units with four rows of rolling elements.
- Linear guide units of this type can also transmit moments without problems and in addition to bearing forces acting transversely to the guide rail.
- Such saddle parts provided with two mutually parallel raceways preferably have a side on which the saddle surface is formed, a saddle axis of the saddle part being arranged between raceway axes of the two raceways.
- forces can be transferred in a favorable manner between the support body and the guide rail, compensatory movements being possible due to the tiltable arrangement of the saddle part.
- the saddle part preferably has an approximately triangular cross-section, a first and a second side of a total of three sides of the saddle part each being provided with one of the raceways for the rolling elements, and the third side of the saddle part being provided with the saddle surface.
- the third side can also be designed as a concave saddle surface which cooperates with the cylindrical circumferential surface of a wire or a rod provided as a support part in order to enable the rocking and thus a moment compensation.
- the concave saddle surface can preferably be designed as a Gothic profile, as already mentioned above.
- Figure 2 shows an enlarged section of the linear guide unit according to
- Figure 1 shows the enlarged view of the saddle part of the linear guide unit according to Figure 1 and Figure 4 shows a schematic representation of a longitudinal section through a linear guide unit according to the invention
- the linear guide unit according to the invention shown in FIGS. 1 to 3 has a guide carriage 3 which is mounted on a guide rail 1 and can be moved longitudinally via balls 2.
- the guide carriage 3 comprises a support body 4 and end caps 5 fastened on the end face to the support body 4, as is shown only schematically in FIG.
- the linear guide unit has a total of four endless rolling element channels 6 for the balls 2, as can also be seen in a schematic representation in FIGS. 4 and 1.
- Each rolling element channel 6 comprises a supporting channel 7 for load-bearing rolling elements, a return channel 8 for returning balls 2 and two deflecting channels 9 which connect the supporting channel 7 and the return channel 8 endlessly and are delimited by the end caps 5.
- a support rail 10 is arranged along the support channels 7 on both sides of the guide rail 1.
- the support rail 10 comprises a support part 11 and a saddle part 12.
- the support part 11 has a circular cross section and is designed as a wire.
- This wire is received in a groove 13 of the support body 4.
- the groove 13 has a Gothic profile 15 seen in cross section, as shown in FIG. 2.
- This Gothic profile 15 can also be referred to as a pointed arch profile, but the pointed arch can be so weak that it resembles a circular arch profile.
- the groove wall encompasses more than half of the wire circumference, so that the wire designed as a saddle part 12 is held captively in the groove 13.
- the saddle part 12 delimits one of the support channels 7 with two raceways 16 arranged parallel to one another.
- the balls 2 roll on the raceways 16 under load.
- the raceways 16 are designed as a ball groove and preferably also have a Gothic profile.
- the saddle part 12 On its side facing the support part 11, the saddle part 12 has a concave saddle surface 17, which is also preferably designed as a Gothic profile.
- the saddle part 12 rests with its saddle surface 17 on the support part 11, wherein it is ensured that the saddle part 12 can tilt about the longitudinal axis of the support part 11 in order to avoid moments occurring due to compensating movements and thus tension.
- a first coefficient of friction is provided between the support body 4 and the support part 11, and a second coefficient of friction is provided between the support part 11 and the saddle part 12, the first coefficient of friction being set greater than the second coefficient of friction.
- the support body 4 can be soft as a continuous casting profile, while the support part 11 and the saddle part 12 are made of steel in one Heat treatment process to be hardened. Undesired material wear on the support body 4 is excluded in this linear guide unit according to the invention.
- the support part 11 cooperates with its convexly curved support surface 18 with the concave curved saddle surface 17 of the saddle part 12. Relative movements take place between these two surfaces in order to enable the compensating movements mentioned above.
- the support surface 18 is formed in a particularly simple manner by the cylindrical outer surface of the wire.
- the support body 4 produced in the continuous casting process is slide-ground, so that undesired sharp edges are broken.
- the approximately triangular saddle part 12 has one of the raceways 16 on its first and on its second side.
- the saddle part 12 is provided with the saddle surface 17 on its third side.
- the saddle surface 17 is arranged centrally between the two raceways 16.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bearings For Parts Moving Linearly (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03753559A EP1552171A1 (de) | 2002-10-16 | 2003-10-15 | Linearführungseinheit |
AU2003271729A AU2003271729A1 (en) | 2002-10-16 | 2003-10-15 | Linear guiding unit |
US10/533,692 US7393139B2 (en) | 2002-10-16 | 2003-10-15 | Linear guiding unit |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10248236.5 | 2002-10-16 | ||
DE10248236A DE10248236A1 (de) | 2002-10-16 | 2002-10-16 | Linearführungseinheit |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004036072A1 true WO2004036072A1 (de) | 2004-04-29 |
Family
ID=32049315
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2003/011422 WO2004036072A1 (de) | 2002-10-16 | 2003-10-15 | Linearführungseinheit |
Country Status (7)
Country | Link |
---|---|
US (1) | US7393139B2 (de) |
EP (1) | EP1552171A1 (de) |
KR (1) | KR20050065599A (de) |
CN (1) | CN100402876C (de) |
AU (1) | AU2003271729A1 (de) |
DE (1) | DE10248236A1 (de) |
WO (1) | WO2004036072A1 (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100887300B1 (ko) * | 2005-07-22 | 2009-03-30 | 박윤식 | 지지판을 갖는 선형운동 안내장치 |
DE102006060609A1 (de) * | 2006-12-21 | 2008-06-26 | AMK Arnold Müller GmbH & Co. KG | Lineares Wälzlagerelement |
DE102009009124A1 (de) * | 2008-10-24 | 2010-04-29 | Paul Hettich Gmbh & Co. Kg | Auszugsführung für Haushaltsgeräte |
WO2012074066A1 (ja) * | 2010-12-02 | 2012-06-07 | Thk株式会社 | 運動案内装置 |
JP2014202219A (ja) * | 2013-04-01 | 2014-10-27 | 日本精工株式会社 | リニアガイド装置 |
JP2016080128A (ja) | 2014-10-21 | 2016-05-16 | 豊和工業株式会社 | ガイド機構付きロッドレスシリンダ |
ES2575123B2 (es) * | 2016-02-22 | 2016-11-04 | Luis Carrillo Lostao | Conjunto de rodamiento, disposición de vigas para cambio de dirección de un carro con el conjunto de rodamiento y sistema de cambio de raíl con dichos conjunto de rodamiento y disposición de vigas |
WO2019010247A1 (en) * | 2017-07-06 | 2019-01-10 | Zaber Technologies Inc. | LINEAR BEARING USING A ROTARY ROLLING PATH WHICH CAN BE INTRODUCED |
KR102024135B1 (ko) * | 2019-05-30 | 2019-09-23 | 주식회사 서형 | 리니어 모션 가이드 장치 |
CN111577763B (zh) * | 2020-05-22 | 2021-06-15 | 浙江威肯特智能机械有限公司 | 一种高良率直线滑块 |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58128526A (ja) * | 1982-01-25 | 1983-08-01 | Nippon Tokushu Bearing Kk | 転がり案内軸受の調心装置 |
US4515416A (en) * | 1983-05-13 | 1985-05-07 | Hiroshi Teramachi | Linear slide bearing |
US4895459A (en) * | 1988-07-16 | 1990-01-23 | Jacob Werner | Fixing arrangement for a revolving shoe of a rolling member guide |
DE9313728U1 (de) * | 1992-09-10 | 1993-11-25 | Star Gmbh | Wälzlager für Linearbewegungen |
US6174084B1 (en) * | 1999-09-10 | 2001-01-16 | Thomson Industries, Inc. | Linear motion bearing assembly with load compensation |
US20010006564A1 (en) * | 1999-12-10 | 2001-07-05 | Andreas Geyer | Roller bearing for longitudinal motions |
US20010014278A1 (en) * | 2000-02-11 | 2001-08-16 | Giuseppe Maffeis | Linear handling unit |
WO2002055895A1 (en) * | 2000-10-24 | 2002-07-18 | Thomson Industries, Inc. | Linear motion bearing segment |
WO2003042561A1 (en) * | 2001-11-15 | 2003-05-22 | Q-Brake | Arrangement at a slide movable on a guide |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58152928A (ja) * | 1982-03-06 | 1983-09-10 | Hiroshi Teramachi | 自動二輪車等車両のキックペダル |
US4582369A (en) * | 1982-09-24 | 1986-04-15 | Tsubakimoto Precision Products Co., Ltd. | Linear motion ball bearing |
CN1003387B (zh) * | 1984-10-19 | 1989-02-22 | 株式会社椿本精工 | 管式直线运动用支承装置 |
US4778287A (en) * | 1986-04-21 | 1988-10-18 | Hoesch Aktiengesellschaft | Annular multi-row bearing with shaped-wire races |
DE9011444U1 (de) * | 1989-09-04 | 1990-11-08 | Deutsche Star Gmbh, 8720 Schweinfurt | Wälzlager für Linearbewegungen |
DE3931397A1 (de) * | 1989-09-20 | 1991-03-28 | Star Gmbh | Waelzlager fuer linearbewegungen stichwort: schienenfuehrung mit vorspannungseinstellung |
KR0182800B1 (ko) * | 1990-08-14 | 1999-05-15 | 쓰보이 우즈히고 | 직동형 가이드 장치 |
DE4041269A1 (de) * | 1990-08-21 | 1992-03-05 | Star Gmbh | Waelzlager fuer linearbewegungen |
JPH0540620U (ja) * | 1991-10-30 | 1993-06-01 | 日本精工株式会社 | ローラタイプ直動案内装置 |
DE4219340A1 (de) * | 1992-06-12 | 1993-12-16 | Star Gmbh | Führung eines Objekts auf einem Schienensystem mittels einer Gruppe von rollenden Schienenlaufelementen |
CN2183848Y (zh) * | 1993-12-29 | 1994-11-30 | 上银科技股份有限公司 | 直线运动的滚珠式滑轨 |
US5755516A (en) * | 1994-05-20 | 1998-05-26 | Thk Co., Ltd. | Rolling guide apparatus and method of manufacturing movable block of rolling guide apparatus |
DE19532759B4 (de) * | 1995-09-05 | 2004-07-01 | Rexroth Star Gmbh | Linearführungseinheit |
JPH102332A (ja) * | 1996-06-18 | 1998-01-06 | Thk Kk | 複列ボールチェインを備えた直線運動案内装置 |
JP3299455B2 (ja) * | 1996-10-14 | 2002-07-08 | テイエチケー株式会社 | 転がり運動案内装置の移動ブロックの成形方法 |
US6364531B1 (en) * | 1999-03-24 | 2002-04-02 | Phd, Inc. | Bearing rail system |
DE10005719A1 (de) * | 2000-02-09 | 2001-08-16 | Schaeffler Waelzlager Ohg | Linearwälzlager |
US6364534B1 (en) * | 2000-02-29 | 2002-04-02 | Lucent Technologies, Inc. | Panel mounting assembly for optical fiber connectors |
US6517245B2 (en) * | 2001-05-04 | 2003-02-11 | Hiwin Technologies Corp | Adjustable end cup for linear guide way structure |
JP2003004040A (ja) * | 2001-06-19 | 2003-01-08 | Thk Co Ltd | 転がり案内装置 |
-
2002
- 2002-10-16 DE DE10248236A patent/DE10248236A1/de not_active Ceased
-
2003
- 2003-10-15 KR KR1020057006519A patent/KR20050065599A/ko not_active Application Discontinuation
- 2003-10-15 WO PCT/EP2003/011422 patent/WO2004036072A1/de not_active Application Discontinuation
- 2003-10-15 CN CNB2003801062876A patent/CN100402876C/zh not_active Expired - Fee Related
- 2003-10-15 US US10/533,692 patent/US7393139B2/en not_active Expired - Fee Related
- 2003-10-15 EP EP03753559A patent/EP1552171A1/de not_active Withdrawn
- 2003-10-15 AU AU2003271729A patent/AU2003271729A1/en not_active Abandoned
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58128526A (ja) * | 1982-01-25 | 1983-08-01 | Nippon Tokushu Bearing Kk | 転がり案内軸受の調心装置 |
US4515416A (en) * | 1983-05-13 | 1985-05-07 | Hiroshi Teramachi | Linear slide bearing |
US4895459A (en) * | 1988-07-16 | 1990-01-23 | Jacob Werner | Fixing arrangement for a revolving shoe of a rolling member guide |
DE9313728U1 (de) * | 1992-09-10 | 1993-11-25 | Star Gmbh | Wälzlager für Linearbewegungen |
US6174084B1 (en) * | 1999-09-10 | 2001-01-16 | Thomson Industries, Inc. | Linear motion bearing assembly with load compensation |
US20010006564A1 (en) * | 1999-12-10 | 2001-07-05 | Andreas Geyer | Roller bearing for longitudinal motions |
US20010014278A1 (en) * | 2000-02-11 | 2001-08-16 | Giuseppe Maffeis | Linear handling unit |
WO2002055895A1 (en) * | 2000-10-24 | 2002-07-18 | Thomson Industries, Inc. | Linear motion bearing segment |
WO2003042561A1 (en) * | 2001-11-15 | 2003-05-22 | Q-Brake | Arrangement at a slide movable on a guide |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 007, no. 240 (M - 251) 25 October 1983 (1983-10-25) * |
Also Published As
Publication number | Publication date |
---|---|
CN1726351A (zh) | 2006-01-25 |
DE10248236A1 (de) | 2004-04-29 |
CN100402876C (zh) | 2008-07-16 |
KR20050065599A (ko) | 2005-06-29 |
US20060140517A1 (en) | 2006-06-29 |
EP1552171A1 (de) | 2005-07-13 |
US7393139B2 (en) | 2008-07-01 |
AU2003271729A1 (en) | 2004-05-04 |
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